Manual de mantenimiento de motores
The electric motor is an equipment widely used by man in the industrial development as most of the machines he has been inventing depend on it. Taking into consideration the prominent role the electric motor plays on people’s life, it must be regarded as a prime power unit embodying features that require special care including its installation and maintenance in order to ensure perfectoperation and longer life to the unit. This means that the electric motor should receive particular attention. The INSTALLATION AND MAINTENANCE MANUAL FOR LOW VOLTAGE THREE-PHASE INDUCTION MOTORS intends to assist those who deal with electric machines facilitating their task to preserve the most important item of the unit:
THE ELECTRIC MOTOR. WEG
Installation and Maintenance Manual forElectric Motors
TABLE OF CONTENTS
1 - INTRODUCTION ............................................................................................................................................1-03 2 - BASIC INSTRUCTIONS ..................................................................................................................................1-03 2.1 - General Instructions.....................................................................................................................................1-03 2.2 - Delivery ........................................................................................................................................................1-03 2.3 - Storage........................................................................................................................................................1-03 3 - INSTALLATION ..............................................................................................................................................1-04 3.1 - Mechanical Aspects .....................................................................................................................................1-04 3.1.1 -Foundation................................................................................................................................................1-04 3.1.2 - Types of bases ..........................................................................................................................................1-04 3.1.3 - Alignment................................................................................................................................................1-04 3.1.4 - Coupling ...................................................................................................................................................1-05 3.2 - Electrical Aspects.........................................................................................................................................................1-09 3.2.1 - Power Supply System...............................................................................................................................1-09 3.2.2 - Starting of Electric Motors .......................................................................................................................1-09 3.2.3 - Motor Protection......................................................................................................................................1-10 3.3 - Start-up ......................................................................................................................................1-11 3.3.1 - Preliminary Inspection............................................................................................................................1-11 3.3.2 - The First Start-up .....................................................................................................................................1-11 3.3.3 - Operation ..................................................................................................................................................1-12 3.3.4 - Stopping...
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